<mat-nav-list style="width:300px;">
  <h3 mat-subheader><span>项目</span></h3>
  <mat-list-item [routerLink]="['/project']">
    <mat-icon mat-list-icon>event</mat-icon>
    <span mat-line>项目主页</span>
    <span mat-line mat-subheader>查看项目</span>
  </mat-list-item>
  <h3 mat-subheader><span>日历</span></h3>
  <mat-list-item [routerLink]="['/task']">
    <mat-icon mat-list-icon>face</mat-icon>
    <span mat-line>月视图</span>
    <span mat-line mat-subheader>按月查看任务</span>
  </mat-list-item>
  <mat-list-item>
    <mat-icon mat-list-icon>face</mat-icon>
    <span mat-line>周视图</span>
    <span mat-line mat-subheader>按周查看任务</span>
  </mat-list-item>
  <mat-list-item>
    <mat-icon mat-list-icon>face</mat-icon>
    <span mat-line>日视图</span>
    <span mat-line mat-subheader>按天查看任务</span>
  </mat-list-item>
</mat-nav-list>
